Illustration: VCG China will champion the overseas expansion of domestic big data firms while supporting the setup of big data research and development (R&D) centers by multinationals in the country, the Minister of Industry and Information, Xiao Yaqing, said on Thursday at the opening of an annual big data expo in Guiyang, capital of Southwest China's Guizhou Province. The annual event is the latest push for the country's digital economic prowess. The expansion of the digital economy has revitalized China's economic development at large, and multiple measures are in the pipeline to push ahead with the digital economic growth, China…